Home / 103,854.50-143,329.32-61,426.70

Finding the Fourth Proportional to 103,854.50, 143,329.32 and 61,426.70

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Solution

The fourth proportional to 103,854.50, 143,329.32 and 61,426.70 is: 84,774.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,854.50 : 143,329.32 = 61,426.70 : x
  2. Step 2: Convert to fraction form
    103,854.50/143,329.32 = 61,426.70/x
  3. Step 3: Cross multiply
    103,854.50x = 143,329.32 × 61,426.70
  4. Step 4: Simplify right side
    103,854.50x = 8,804,246,424.20
  5. Step 5: Solve for x
    x = 8,804,246,424.20/103,854.50
  6. Step 6: Final answer
    x = 84,774.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.